Strain rate and temperature effects on the mechanical properties of TiN/VN composite: Molecular dynamics study

SB Ding and XQ Wang, JOURNAL OF ALLOYS AND COMPOUNDS, 814, 152151 (2020).

DOI: 10.1016/j.jallcom.2019.152151

The second nearest-neighbor modified embedded-atom method (2NN MEAM) potential of Ti-V-N ternary system is developed based on the newly optimized interaction potentials of binary systems. The obtained potentials can excellently reproduce the structural, elastic and surface properties of the relevant systems. Then the effects of the strain rate and temperature on the mechanical properties of TiN/VN composite are studied by using the present potentials. It is found that strain rates have almost no influence on the Young's modulus of TiN/VN composite, but have a great influence on the inelastic properties. Whereas both the Young's modulus and the inelastic properties are sensitive to temperature. It is also found that the fracture of TiN/VN composite is a brittle fracture taking place in the VN layers. (C) 2019 Elsevier B.V. All rights reserved.

Return to Publications page